One vertex per element, one color per generator, with an edge from x to x·s.
(3,9)(7,10)(11,15)(14,16)(17,18,23,20)(19,26,24,21)(22,28,30,25)(27,29,31,32)(34,37)(35,41)(40,44)(43,47)(1,2)(3,7)(4,12)(5,6)(8,13)(9,10)(11,16)(14,15)(19,24)(21,26)(22,30)(25,28)(33,34,38,37)(35,42,41,39)(36,44,45,40)(43,46,47,48)(2,6)(7,10)(8,12)(14,16)(17,19,23,24)(18,21,20,26)(22,27,30,31)(25,29,28,32)(33,35,38,41)(34,39,37,42)(36,43,45,47)(40,46,44,48)(1,2)(3,10)(4,8)(5,6)(7,9)(11,16)(12,13)(14,15)(17,20,23,18)(19,21,24,26)(22,28,30,25)(27,29,31,32)(33,34,38,37)(35,39,41,42)(36,40,45,44)(43,46,47,48)(1,3)(2,7)(4,11)(5,9)(6,10)(8,14)(12,16)(13,15)(17,21)(18,24)(19,20)(22,29)(23,26)(25,31)(27,28)(30,32)(33,36,38,45)(34,40,37,44)(35,43,41,47)(39,46,42,48)(1,4,5,13)(2,8,6,12)(3,11,9,15)(7,14,10,16)(17,22,23,30)(18,25,20,28)(19,27,24,31)(21,29,26,32)(33,37,38,34)(35,42,41,39)(36,44,45,40)(43,48,47,46)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.